Site map

• Main
• Basics
  • Introduction
    • Help
  • The basics of the basics
  • Data!
  • Managing our data!
  • Conclusion
• Data
  • Introduction
  • Basic statistics
  • Access, extract and merge data?
    • The perfect match
    • Merge, add and remove
    • Applying functions to R objects
  • A quick look at our data
    • The function “stripchart()”
    • The function “hist()”
    • The function “plot()”
  • Conclusion
• Statistical tests
  • Introduction
  • Student’s t-tests
    • Student’s t-test
    • Student’s t-test for paired data
  • Wilcoxon tests
    • Wilcoxon rank-sum test
    • Wilcoxon signed-rank test for paired data
  • ANOVA
  • Kruskal-Wallis rank sum test
  • Binomial test
  • Chi-square test
    • The chi square test of goodness of fit
    • The chi square test of independence
  • Fisher’s exact test
  • Correlation and regression
    • Correlation
      • Pearson’s R
      • Spearman’s R
    • Regression
      • Simple linear regression
      • Multiple linear regression
    • GLM
      • Concept
        • Distributions
        • The link function
        • The linear predictor
      • How to in practice
        • The linear regression
        • The logistic regression
        • The Poisson regression
  • Conclusion
• Graphs
  • Introduction
  • The “plot()” function
  • Adding elements
    • Adding points
    • Adding a straight line
    • Adding lines
    • Adding text
    • I am ‘legend()’
  • Getting information
  • More graphical functions
    • The “hist()” function
    • The “density()” function
    • The “boxplot()” function
    • The “barplot()” function
    • The “plotmeans()” function
  • A little bit of 3D?
    • The “scatter3d()” function
    • The “persp()” function
  • Saving a graph
  • Conclusion
• Functions
  • Introduction
  • Function: the general structure
    • Defining arguments
    • Comments and formatting
  • Let’s get logical
    • Combining logical tests
    • Using logical tests
  • Creating sequences of numbers
  • Function: in the loop
    • “for() {}”: the loop of it!
    • “while() {}”: we’re at it!
    • Breaking the cycle
  • Conclusion
• About
  • Contact
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